Process Control and Instrumentation Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value. 63.2 95 100 87.5 63.2 95 100 87.5 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Starting temperature of optical radiation pyrometer is __________ °C. 1200 400 1500 800 1200 400 1500 800 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Same as transportation lag Time taken by the controlled variable to reach 63.2% of its full change Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C. Radiation pyrometer Mercury thermometer None of these Bimetallic thermometer Radiation pyrometer Mercury thermometer None of these Bimetallic thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is Eτds Τds + 1 E-τds 1/(τds + 1) Eτds Τds + 1 E-τds 1/(τds + 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Reduce measuring lag Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Increase the sensitivity Reduce measuring lag Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Increase the sensitivity ANSWER DOWNLOAD EXAMIANS APP
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